Metallic revolving window.



PATENTED MAR. 17, 1903.-

L. GHRISTENSON. METALLIC REVOLVING WINDOW.

APPLICATION IILED JUNE 27, 1902.

I0 MODEL.

n m l u A w z v 9 r x J 5 ad lmlfi: L u ,v n q 0 J wi/bnoogo UNITED STATES LABS CHRISTENSON,

PATENT Urrrcn.

OF NEW YORK, N. Y.

METALLIC REVOLVING WINDOW.

SPECIFICATION formingpart of Letters Patent No. 722,675, dated March 17, 1903.

Application filed June 2'7 1902.

To all whom, it may concern:

Be it known that I, LARS CHRISTENSON, a subject of the King of Sweden and Norway, and a resident of New York city, county and State of New York, have invented certain new and useful Improvements in Metallic Revolving Windows, of which the following is a specification.

My invention relates to revolving windows constructed of sheet metal; and the object is to provide more simple, cheaper, andmore reliable windows of metallic construction for revolving the sash to facilitate cleaning the outsides, as hereinafter described, reference being made to the accompanying drawings, in which- Figure l is a horizontal section of one of the stiles of the window-frame and one each of the stiles of the sashes. Fig. 2 is a detail of one of the sash-stiles in vertical section on line 1 1 of Fig. 1.

A represents a cross-section of a stile of the window-frame made of sheet metal bent into rectangular form, with vertical grooves or recesses for the sashes and stops, as follows: a represents the groove for the upper sash-stile b, c'the groove for the middle stop d, and f the groove for the inner stop g, and between grooves f and c is a rib h, the face of which is flush with the bottom of groove a and is practically the bottom of channel vlfor the lower sash stile j, the sides of which groove are sides of the stops (1 and respec tively. The sash-stiles are also made of sheet metal bent into the required form of crosssection, which is practically rectangular, with a groove 7:; in the edge coacting with the framestile A and a groovel in the opposite edge for reception of the glass pane m. The corners of the inner edge are preferably beveled or equivalently toned down, as at n 0, or otherwise.

Instead of arranging the sash-stiles in the grooves a v; of the frame in the usual manner I provide a channel-bar q for each sash-stile of equal length thereto and of suitable width to fit closely in the grooves and so as to slide in them, but not quite as deep as the depth of the grooves, and having its median web corresponding in form and coacting with the groove 70 in the sash-stile, which form is such that with said bar fitted so that it may be $erialNo-113A28. (No and.

pressed back into the frame-groove lateral movement of the sash, as by turning it on its pivots, will force back said bar, thus making the sash self-releasing from its normal holder. The sash-stile and its bar q are connected together midway of their length by a pivot-stud s, fixedly secured to the sash-stile by a block or frame 25, inserted within the stile from one end and riveted to its sides at u as a simple and efficient contrivance for reinforcement of the strength of the sheet-metal stile for holding said pivot. The pivot 5 extends through channel-bar q and reaches to close proximity ofthe face of rib h of the frame and near the end passes through a springplate 1), reaching nearly the length of' channel-bar q and having angle end parts to turned toward but not quite reaching to the bottom of the channel of said bar. The set of this spring-plate is such that the ends tend to thrust outward of the channel-bar q, and

coiled wire springs m are placed between said plate and the bottom of the channel to reinforce this tendency. Around the pivot sis another coiled springy, against which the plate-spring "u is seated and held with considerable tension by a pin ,2. The said spring-plate bears against rib h and supports the springs for thrusting the channel-bar q and affords movable seats for the springs. The sash-suspending chains a are connected to these springplates '0 at their upper ends for operating the sash. In this case the connection is by the end link of the chain inserted through a hole in the angle-piece w of the spring-plate o and secured by the spring 00, threaded through the link under the angle-piece; but the connection may be made in any other approved way. The lower angle-piece w is suitably formed as to its width for a center stud to the spring, the coils of which surround it for being stayed against lateral divergence.

It will be seen that the ends of the springs o bear against the bottoms of the grooves in the frame-stiles, and thus press the channelbars q firmly into the grooves of thesashstiles, and thus prevent the sash from shaking and rattling by the wind and also prevent the wind from blowing through, and the sash can be turned readily on the pivots simply by forcing them so that the bevel or equivalently shaped grooves of the sash acting on the correspondingly-shaped channel-bars will force them back so as to permit the sash to swing, and when the sashes are returned the channel-bars are thrust out again and hold the sash firmly.

The stops d and g aredetachably applied, as in other Windows, to enable the sash to be put in place, with the attachments, consisting of the channel-bars q and springs, connected.

The sash stiles and rails may be filled with wood, if desired.

It is to be noted that by using channel-bars for the slides carrying the-sash the channels adord space for the various springs employed between the channel-bars and the windowframe stile for close contact of the sash and channel-bar, particularly the long flat spring u, Without special preparation of the channel-bars.

What I claim as my invention is- 1. The combination with the grooved windoW-trame stiles, and the sash having grooved stiles, of the channel-bars, sliding in the grooves of said frame and fittingthe grooves of the sash-stiles,pivol-studs of the sash-stiles whereon said channel-bars are slidably connected, and springs controlling the sliding movements of said bars on said pivots, said springs located in the channels of said bars and said sash-stile grooves and channel-bars being'self-releasing by the rotatory movements of the sash.

I 2. The combination with the grooved Window-frame stiles, and the sash having grooved stiles, of the channelbars, sliding in the grooves of said frame and fitting the grooves of the sash-stiles, pivot-studs of the sash-stiles whereon said channel-bars are slidably connected, spring-plates located in the channelbars and connected with the pivot-studs, coiled springs on said pivot-studs intermediate of said spring-plates and channel-bars, and the coiled springs at the extremities of the spring-plates, seated on and carried by said plates.

3. The combination with the grooved window-frame stiles, and the sash having grooved stiles, of the channel-bars, sliding in the grooves of said frame and fitting the grooves of the sash-stiles, pivot-studs of the sash-stiles whereon said channel-bars are slidably connected, and springs controlling the sliding movements of said bars on said pivots, said sash-stiles, grooves and channel-bars being self-releasing by the rotatory movements of the sash, and said pivot-studs secured in the hollow sash-stiles by the reinforcing-pieces inserted and riveted therein. 4

Signed at New York this 19th day of June,

LARS OHRISTENSON. Witnesses:

O. SEDGWIOK, CHAS. ASHLUND. 

